Monday , June 24 2024
[fb_plugin like]

Coronavirus could trigger biggest fall in carbon emissions since World War Two


According to the chair of a network of scientists providing benchmark emissions data carbon dioxide emissions could fall by the largest amount since World War Two this year as the coronavirus outbreak brings economies to a virtual standstill.

Professor Rob Jackson, who chairs the Global Carbon Project, which produces widely-watched annual emissions estimates, said carbon output could fall by more than five per cent year-on-year, the first dip since a 1.4 per cent reduction after the 2008 financial crisis.

“I wouldn’t be shocked to see a five per cent or more drop in carbon dioxide emissions this year, something not seen since the end of World War Two,” Professor Jackson, an expert in Earth system science at Stanford University in California, told Reuters Newsagency in an email.

Neither the fall of the Soviet Union nor the various oil or savings and loan crises of the past 50 years are likely to have affected emissions the way this crisis is,” he said.

The prediction, among a range of new forecasts being produced by climate researchers, represents a tiny sliver of good news in the midst of crisis: Climate scientists had warned world governments that global emissions must start dropping by 2020 to avoid the worst impacts of climate change.

Reuters reports the improvements are for all the wrong reasons, tied to a world-shaking global health emergency that has infected more than one million people, while shuttering factories, grounding airlines and forcing hundreds of millions of people to stay at home to slow the contagion.

Experts warn that without structural change, the emissions declines caused by coronavirus could be short-lived and have little impact on the concentrations of carbon dioxide that have accumulated in the atmosphere over decades.

“This drop is not due to structural changes so as soon as confinement ends, I expect the emissions will go back close to where they were,” said Professor Corinne Le Quéré, a climate scientist at the University of East Anglia in eastern England.

After world greenhouse gas emissions dipped in the aftermath of the 2007-2008 global financial crisis, they shot back up a whopping 5.1 per cent in the recovery, according to Professor Jackson.

The pattern of a swift rebound has already begun to play out in China, where emissions fell by an estimated 25 per cent as the country closed factories and put in place strict measures on people’s movement to contain the coronavirus earlier this year, but have since returned to a normal range.

That kind of resilience underscores the magnitude of the economic transformation that would be needed to meet the goals of an international deal brokered by the United Nations in Paris in 2015 to try to avert the most catastrophic climate change scenarios.

A UN report published in November found that emissions would have to start falling by an average of 7.6 per cent per year to give the world a viable chance of limiting the rise in average global temperatures to 1.5 degrees Celsius, the most ambitious Paris Agreement goal.

“I don’t see any way that this is good news except for proving that humans drive greenhouse gas emissions,” said Dr Kristopher Karnauskas, associate professor at the Department of Atmospheric  and Oceanic Sciences at the University of Colorado Boulder.

With the world dependent for fossil fuels for 80 per cent of its energy, emissions forecasts are often based on projections for global economic growth.

Last month, Glen Peters, research director of the Centre for International Climate Research in Oslo, predicted carbon emissions would fall between 0.3 per cent and 1.2 per cent this year, using higher and lower forecasts for global GDP growth from the OECD.

A few days later, the Breakthrough Institute, a research centre in California, predicted emissions will decline 0.5 per cent to 2.2 per cent, basing its calculations on growth forecasts from JP Morgan, and assuming the global economy recovers in the second half.

“Our estimates indicate that the pandemic’s climate silver lining is vanishingly thin,” said Dr Seaver Wang, a climate and energy analyst at the institute.

“It’s as if we went back in time and emitted the same amount we were a few years ago — which was already too much. In the grand scheme of things, it really makes no difference.”

Some foresee a bigger hit to the economy.

The London-based Centre for Economics and Business Research estimates that world GDP will fall by at least four per cent this year, albeit with a “huge margin of error.”

That drop would be more than twice as large as the contraction during the financial crisis, and the largest annual fall in GDP since 1931, barring wartime, the centre said.

With governments launching gigantic stimulus packages to stop their economies collapsing, investors are now watching to see how far the United States, and China, the European Union, Japan and others embrace lower-emission energy sources.

“Even if there is a decline in emissions in 2020, let’s say 10 per cent or 20 per cent, it’s not negligible, it’s important, but from a climate point of view, it would be a small dent if emissions go back to pre-COVID-19 crisis levels in 2021,” said Professor Pierre Friedlingstein, chair in mathematical modelling of the climate system at the University of Exeter in southwest England.

“This is why it is important to think about the nature of the economic stimulus packages around the world as countries come out of the most immediate health crisis,” said Dr Dan Lashof, US director at the World Resources Institute.

EcoNews is an independent publication that relies on contributions from its readers.


Click Here to Contribute

If you value EcoNews, but are unable to contribute via sponsorship or advertising we ask that you promote our online store The Native Shop – via your social media to assist us to fund this valuable service.

Source link

Y Not Freakin’ Recyclable Home

About Zohe

Environmentalist, Futurist, Lightworker, Wannabe naturalist. The way we are treating our world and environment is not going to end well! We need to change course NOW.

Check Also

Global Warming Pictures|| Save🌏 plz👈😔#shorts #viral

Global Warming Pictures|| #savewater #pollution #globalisation #saveearth #planttree source

Sahifa Theme License is not validated, Go to the theme options page to validate the license, You need a single license for each domain name.